US20100311629A1 - Method for removing water-insoluble substances from substrate surfaces - Google Patents
Method for removing water-insoluble substances from substrate surfaces Download PDFInfo
- Publication number
- US20100311629A1 US20100311629A1 US12/680,280 US68028008A US2010311629A1 US 20100311629 A1 US20100311629 A1 US 20100311629A1 US 68028008 A US68028008 A US 68028008A US 2010311629 A1 US2010311629 A1 US 2010311629A1
- Authority
- US
- United States
- Prior art keywords
- hydrophobin
- carrier
- water
- hydrophobins
- sebum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/64—Proteins; Peptides; Derivatives or degradation products thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/0208—Tissues; Wipes; Patches
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
- A61Q1/14—Preparations for removing make-up
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
- A61Q19/008—Preparations for oily skin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
- A61Q19/10—Washing or bathing preparations
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q5/00—Preparations for care of the hair
- A61Q5/02—Preparations for cleaning the hair
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/04—Detergent materials or soaps characterised by their shape or physical properties combined with or containing other objects
- C11D17/049—Cleaning or scouring pads; Wipes
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/38—Products with no well-defined composition, e.g. natural products
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/10—Objects to be cleaned
Definitions
- the invention relates to a method for removing water-insoluble substances from substrate surfaces by means of a solid dry carrier comprising hydrophobin.
- compositions for removing water-insoluble substances from substrates by means of a carrier from daily life are known in particular from the household.
- Most of these cleaning or spraying compositions, and also cosmetic compositions for removing makeup or skin cleansing are based on solutions which comprise organic solvents, for example, alcohol, and emulsifiers or detergents, in order to dissolve the water-insoluble substances on the substrates.
- such compositions can also comprise particles, such as scouring agents or peeling preparations, which develop a cleaning effect through mechanical rubbing. The majority of these preparations are applied to the substrate and then wiped off with a cloth, made of textiles, paper or cotton wool, thus cleaning the substrate.
- moist materials have increasingly been supplied which comprise the corresponding preparations for cleaning the substrates.
- moist cleansing wipes or so-called cotton-wool pads containing the corresponding preparations are known.
- Hydrophobins are small proteins of about 100 to 150 amino acids, which occur in filamentous fungi, for example Schizophyllum commune. They generally have 8 cysteine units. Hydrophobins can be isolated from natural sources, but can also be obtained by means of genetic engineering methods, as disclosed, for example, by WO 2006/082251 or WO 2006/131564.
- US 20030217419 A1 describes the use of the hydrophobin SC3 from Schizophyllum commune for cosmetic preparations for the treatment of therapy materials.
- cosmetic depots are formed which withstand several washes with shampoo.
- WO 96/41882 proposes the use of hydrophobins as emulsifiers, thickeners, surface-active substances, for the hydrophilization of hydrophobic surfaces, for improving the water resistance of hydrophilic substrates, for producing oil-in-water emulsions or water-in-oil emulsions. Furthermore, pharmaceutical applications such as the production of ointments or creams, and also cosmetic applications, e.g. for skin protection or for the production of hair shampoos or hair rinses, are proposed.
- EP 1 252 516 discloses the coating of various substrates with a solution comprising hydrophobins at a temperature of from 30 to 80° C. Furthermore, the use as demulsifier (WO 2006/103251), as evaporation retarder (WO 2006/128877) or soiling inhibitor (WO 2006/103215), for example, has been proposed.
- a further subject matter of the present invention relates to cosmetic methods for removing sebum and/or makeup, in which the skin and/or hair surface is treated with a carrier which comprises hydrophobin.
- a carrier which comprises hydrophobin for removing water-insoluble substances is provided by the present invention.
- Particular embodiments of the invention can be found in the claims, the description and the examples.
- the invention also comprises combinations of preferred embodiments.
- the special feature of the invention lies in the fact that the solid dry carriers loaded with hydrophobin absorb a large amount of water-insoluble substance and at the same time release the absorbed substance again in only small amounts.
- solid dry carriers are used which comprise hydrophobin.
- Hydrophobins are surface-active polypeptides. They can be isolated from natural sources, but can also be obtained by means of genetic engineering methods.
- hydrophobins of one type or another are suitable.
- Hydrophobin or “hydrophobins” can be understood as meaning polypeptides of the general formula (I)
- X can be any of the 20 naturally occurring amino acids (Phe, Leu, Ser, Tyr, Cys, Trp, Pro, His, Gln, Arg, Ile, Met, Thr, Asn, Lys, Val, Ala, Asp, Glu, Gly).
- the radicals X can each be identical or different.
- the indices positioned next to X are in each case the number of amino acids in the particular part sequence X, C is cysteine, alanine, serine, glycine, methionine or threonine, where at least four of the radicals designated C are cysteine and the indices n and m independently of one another are natural numbers.
- m nor n are zero, but are generally 1 or more.
- m and n, independently of one another are from 1 to 500.
- m and n, independently of one another are from 15 to 300.
- the amino acids named by C 1 to C 8 are preferably cysteines; however, they can also be replaced by other amino acids of similar space filling, preferably by alanine, serine, threonine, methionine or glycine.
- at least four, preferably at least five, particularly preferably at least six and in particular at least seven of positions C 1 to C 8 should consist of cysteines.
- Cysteines in the proteins according to the invention can either be present in reduced form or form disulfide bridges with one another.
- C—C bridges in particular those with at least one, preferably two, particularly preferably three and very particularly preferably four intramolecular disulfide bridges.
- cysteines by amino acids of similar space filling
- those pairs of C positions are advantageously replaced which can form intramolecular disulfide bridges with one another.
- cysteines, serines, alanines, glycines, methionines or threonines are also used in the positions referred to by X, then the number of the individual C positions in the general formulae can change accordingly.
- indices n and m are natural numbers.
- neither m nor n are zero, but are generally 1 or more.
- m and n, independently of one another may be from 1 to 500.
- m and n, independently of one another are from 15 to 300 and at least six of the radicals designated C are cysteine. Particularly preferably, all of the radicals C are cysteine.
- X and C have the above meaning, and the indices positioned alongside X have the above meaning.
- the indices n and m are natural numbers from 1 to 200.
- at least six of the radicals designated C are cysteine.
- Particularly preferably all of the radicals C are cysteine.
- the groups X n and X m may be peptide sequences which are naturally linked with the other constituents of the hydrophobin. However, for one or both groups, these may also be peptide sequences which are naturally not linked with the other constituents of the hydrophobin. These are also to be understood as meaning those groups X n and/or X m in which a peptide sequence occurring naturally in the protein is extended by a peptide sequence not occurring naturally in the protein.
- the group X n and/or X m can completely or partially comprise peptide sequences which do not occur naturally in the protein.
- the peptide sequences not occurring naturally in the protein, of which the group X n and/or X m can partially or completely consist, will also be referred to below as fusion partners.
- These fusion partners are generally at least 20, preferably at least 35, amino acids long. These may, for example, be sequences of from 20 to 500, preferably from 30 to 400 and particularly preferably from 35 to 100 amino acids.
- Fusion partners have been disclosed, for example, in WO 2006/082251, WO 2006/082253 and WO 2006/131564.
- the fusion partner can be selected from a large number of proteins. It is possible for just a single fusion partner to be linked with the radical of the polypeptide, or else for a plurality of fusion partners to be linked with the radical of the polypeptide. However, it is also possible, for example, for two fusion partners at the positions X n or X m to be linked with the radical of the polypeptide.
- fusion partners are proteins, which occur naturally in microorganisms, in particular in Escherichia coli or Bacillus subtilis .
- fusion partners are the sequences yaad (SEQ ID NO: 16 in WO 2006/082251), yaae (SEQ ID NO: 18 in WO 2006/082251), ubiquitin and thioredoxin.
- sequences yaad SEQ ID NO: 16 in WO 2006/082251
- yaae SEQ ID NO: 18 in WO 2006/082251
- ubiquitin and thioredoxin are also fragments or derivatives of these specified sequences, which comprise only part, for example from 70 to 99%, preferably from 5 to 50%, and particularly preferably from 10 to 40%, of the specified sequences, or in which individual amino acids, or nucleotides are changed compared with the specified sequence, the percentage data referring in each case to the number of amino acids.
- the hydrophobin has, besides the specified fusion partner, as one of the groups X n or X m or as terminal constituent of such a group, also a so-called affinity domain (affinity tag/affinity tail).
- affinity domains comprise (His) k , (Arg) k , (Asp) k , (Phe) k or (Cys) k groups, where k is in general a natural number from 1 to 10.
- it may be a (His) k group, where k is four to six.
- the group X n and/or X m can consist exclusively of such an affinity domain or else of amino acids linked naturally or not naturally with the radical of the polypeptide, and such an affinity domain.
- hydrophobins can also be modified in their polypeptide sequence, for example, by glycosylation, acetylation or else by chemical crosslinking, for example, with glutardialdehyde.
- hydrophobins used is the change in surface properties when the surfaces e.g. those of a carrier are coated with the proteins.
- the change in the surface properties can be determined experimentally, for example, by measuring the contact angle of a water drop before and after coating the surface with the proteins and ascertaining the difference in the two measurements.
- the contact angle measurement procedure is known in principle to the person skilled in the art.
- the measurements are carried out at room temperature with a water drop of 5 ⁇ l and using glass platelets as substrate.
- the precise experimental conditions for an example of a suitable method for measuring the contact angle are given in the experimental section.
- the hydrophobins used can enlarge the contact angle.
- the hydrophobins can enlarge change the contact angle, for example, by at least 20°, preferably at least 25°, particularly preferably at least 30°; 40°, 45° in particular 50°, in each case compared with the contact angle of an identically sized water drop with the uncoated glass surface.
- hydrophobins for carrying out the present invention are the hydrophobins of the type dewA, rodA, hypA, hypB, sc3, basf1, basf2. These hydrophobins including their sequences are disclosed, for example in WO 2006/82251. Unless stated otherwise, the sequences stated below refer to sequences disclosed in WO 2006/82251. An overview table with the SEQ-ID numbers can be found in WO 2006/82251 on page 20.
- hydrophobins yaad-Xa-dewA-his (SEQ ID NO: 20), yaad-Xa-rodA-his (SEQ ID NO: 22) or yaad-Xa-basf1-his (SEQ ID NO: 24) with the polypeptide sequences stated in brackets, and also the nucleic acid sequences coding therefor, in particular the sequences according to SEQ ID NO: 19, 21, 23.
- yaad-Xa-dewA-his SEQ ID NO: 20
- proteins which arise starting from the polypeptide sequences shown in SEQ ID NO.
- biological property of the proteins is understood as meaning the change in contact angle already described.
- Hydrophobins suitable particularly for carrying out the present invention are hydrophobins derived from yaad-Xa-dewA-his (SEQ ID NO: 20), yaad-Xa-rodA-his (SEQ ID NO: 22) or yaad-Xa-basf1-his (SEQ ID NO: 24) by shortening the yaad fusion partner.
- a shortened yaad radical can advantageously be used.
- the shortened radical should comprise at least 20, preferably at least 35, amino acids.
- a shortened radical with 20 to 293, preferably 25 to 250, particularly preferably 35 to 150 and, for example, 35 to 100 amino acids can be used.
- a protein is yaad40-Xa-dewA-his (SEQ ID NO: 26 in PCT/EP2006/064720), which has a yaad radical shortened to 40 amino acids.
- a cleavage site between the fusion partner or fusion partners and the radical of the polypeptide can be used to cleave off the fusion partner (for example by BrCN cleavage on methionine, factor Xa cleavage, enterokinase cleavage, thrombin cleavage, TEV cleavage etc.).
- hydrophobins present according to the invention in the carrier or the hydrophobins used for producing cosmetic compositions can be prepared chemically by known methods of peptide synthesis, for example by solid-phase synthesis in accordance with Merrifield.
- Naturally occurring hydrophobins can be isolated from natural sources using suitable methods.
- suitable methods for example, reference may be made to Wosten et. al., Eur. J. Cell Bio. 63, 122-129 (1994) or WO 96/41882.
- hydrophobins which comprise a fusion partner can preferably take place by genetic engineering methods in which a nucleic acid sequence coding for the fusion partner and a nucleic acid sequence for the radical of the polypeptide, in particular DNA sequence, are combined such that, in a host organism through gene expression of the combined nucleic acid sequence, the desired protein is produced.
- One such preparation method is disclosed, for example, by WO 2006/082251 or WO 2006/082253.
- the fusion partners make the preparation of the hydrophobins considerably easier. Hydrophobins which comprise a fusion partner are produced in the genetic engineering methods with considerably better yields than hydrophobins which do not comprise a fusion partner.
- hydrophobins produced by the genetic engineering method from the host organisms can be worked up in a manner known in principle and be purified using known chromatographic methods.
- purified hydrophobins are used for carrying out the invention.
- the fermented cells are firstly separated off from the fermentation broth, disrupted and the cell debris is separated from the inclusion bodies.
- the latter can advantageously take place by centrifugation.
- the inclusion bodies can be disrupted, for example by acids, bases and/or detergents in a manner known in principle, in order to release the hydrophobins.
- the inclusion bodies with the hydrophobins used according to the invention can generally be completely dissolved using just 0.1 m NaOH within about 1 h.
- the resulting solutions can, where necessary, following adjustment of the desired pH, be used without further purification for carrying out this invention.
- the hydrophobins can, however, also be isolated as a solid from the solutions. Preferably, the isolation can take place by means of a spray-granulation or spray-drying, as described in WO 2006/082253, page 12.
- the products obtained after the simplified work-up and purification method comprise, besides remains of cell debris, generally about 80 to 90% by weight of proteins.
- the amount of hydrophobins is generally from 30 to 80% by weight, with regard to the amount of all proteins.
- the isolated products comprising hydrophobins can be stored as solids.
- hydrophobins can be used for carrying out this invention as such or else after cleaving off and separating off the fusion partner.
- a cleavage is advantageously undertaken following isolation of the inclusion bodies and their dissolution.
- the hydrophobin may be present in a solid dry carrier.
- the solid dry carrier can comprise a hydrophobin or else a composition of different hydrophobins e.g. a composition which comprises two or three hydrophobins.
- the carrier is solid and dry. Dry here means that the carrier has no or only a small moisture content.
- This moisture content can be ascertained by determining the residual moisture by means of a gravimetric measurement. For this, firstly the weight of the unloaded carrier is ascertained at room temperature. After loading the carrier, it is correspondingly dried. After drying, the weight of the now loaded carrier is ascertained. The difference between these values gives the residual moisture, which is quoted as a percentage based on the weight of the unloaded carrier (100%). However, it is to be noted here that the substances with which the carrier is loaded (hydrophobin etc.) likewise contribute to the weight of the loaded carrier.
- the residual moisture of the carrier according to the invention can be up to 25% residual moisture, preferably up to 12% residual moisture, particularly preferably up to 7% and very particularly preferably up to 3% residual moisture. However, the carrier may also have absolutely no detectable residual moisture.
- the carrier is a material which itself has a surface which is not entirely smooth but irregular.
- any surface can have depressions.
- the carrier can also have cavities, cells and/or pores.
- the carrier can, however, also be made of a fibrous material or a material which comprises fibers.
- the carrier is a foam, sponge, nonwoven, paper and/or cotton wool.
- the carrier has a hydrophilic surface.
- surfaces are referred to as hydrophilic if they do not repel water. Hydrophilic surfaces generally have contact angles toward water of less than 90°.
- the carrier has a small pore size.
- the carrier is foam.
- Foam is a plastic whose structure is formed by many cells (cavities, pores enclosed by base material). Virtually all plastics are suitable for foaming. In one of the embodiments, preference is given to foams which are suitable for cosmetic uses.
- the carrier is open-cell foams, in particular based on melamine-formaldehyde resins.
- Production methods for foams based on polyurethanes are known, for example, from WO 2005/103107 or WO 2006/008054.
- Production methods for foams based on melamine-formaldehyde resins are disclosed, for example, in EP-A 17 672, EP-A 37 470 and WO 01/94436.
- a mixture of a melamine-formaldehyde precondensate dispersed or dissolved in an aqueous medium, a propellant, a dispersant and a hardener is heated, foamed and cured.
- the heating can be undertaken, for example, with the help of hot air, steam, or microwave irradiation.
- the concentration of the melamine/formaldehyde precondensate in the mixture is generally from 55 to 85% by weight, preferably from 63 to 80% by weight.
- the crude density of the open-cell foam based on melamine-formaldehyde resins is generally in the range from 3 to 100 kg/m 3 , preferably in the range from 5 to 20 kg/m 3 .
- the term “crude density” refers in a manner known in principle to the density of the foam including the pore volume.
- the cell number is usually in the range from 50 to 300 cells/25 mm.
- the average pore size is usually in the range from 100 to 250 ⁇ m (measurement method: systematic NMR analysis with molecular probes or electron microscopy).
- the tensile strength is preferably in the range from 100 to 150 kPa and the elongation at break in the range from 8 to 20% (measurement method for tensile strength and elongation at break: Werstoff-Fuhrer Kunststoffe, Hellerich, Harsch, Haenle, 9th edition, Carl Hansen Verlag, 2004 pp. 259-275).
- the carrier is a sponge or sponge-like material.
- Sponges are generally to be understood as meaning solid or semi-solid elastic foams which consist of gas-filled, for example polyhedron-shaped cells, which are limited by highly viscous and/or solid cell struts. It is possible to use either naturally occurring sponges, semisynthetic or synthetically produced sponge-like structures. Examples of synthetic sponge-like materials are polyurethanes, polyacrylates, poly(meth)acrylic acid derivatives, homopolymers and copolymers of vinyl acetate.
- the natural and semisynthetic polymers include, inter alia, cellulose, cellulose ethers or cellulose esters such as cellulose acetate and cellulose acetate phthalate.
- Examples of natural polymers are polysaccharides such as alginates, tragacanth, xanthan gums, guar gum and salts and derivatives thereof.
- the use of chitin and of chitin derivatives is possible.
- scleroproteins e.g. collagen, keratin, conchagens, fibroin, elastin and chitin.
- polysaccharides stably crosslinked with one another.
- the carrier is made of textile, nonwoven, paper and/or cotton wool.
- the materials can be woven or knitted or be in the form of a composite.
- the composites include, according to DIN 61210 T2 (no longer in force), nonwoven, paper, cotton wool and felt, which are all to be used according to the invention.
- Nonwovens are loose materials made of spun fibers (i.e. fibers with limited length) or filaments (endless fibers), mostly produced from polypropylene, polyester or viscose, which are generally held together by the adhesion intrinsic to the fibers.
- the individual fibers can have a preferred direction (oriented or cross-laid webs) or be unoriented (random webs).
- the nonwovens may be mechanically bonded by needle punching, intermeshing or by swirling by means of strong water jets.
- Adhesively bonded nonwovens are formed by gluing the fibers together with liquid binding agents (e.g. acrylate polymers, SBR/NBR, polyvinyl ester, polyurethane dispersions) or by melting or dissolving so-called binder fibers which have been added to the nonwoven during production.
- liquid binding agents e.g. acrylate polymers, SBR/NBR, polyvinyl ester, polyurethane dispersions
- binder fibers which have been added to the nonwoven during production.
- the fiber surfaces are partially dissolved by suitable chemicals and bonded by pressure or fused at elevated temperature [J. Falbe, M. Regnitz: Römpp-Chemie-Lexikon, 9th edition, Thieme-Verlag, Stuttgart (1992)].
- cotton wool refers to a loose fiber mass composed of fiber piles and compacted, the fibers being held together by their natural adhesion. They consist of cotton hairs, wool, tillandsia, cellulose and also quartz, inter alia mineral fibers. Cotton wool is preferably used in the form of cotton wool pads or cotton wool buds or in combinations thereof.
- textiles are to be understood as meaning textile fibers, textile semi-finished and finished products and articles produced therefrom which comprise textile structures serving technical purposes.
- Textiles can be made of materials of natural origin, for example cotton, wool or flax, or mixed fabrics, for example with cotton/polyester, cotton/polyamide.
- Textiles can also consist of polyacrylonitrile, polyamide and in particular polyesters or mixtures of materials of natural origin with polyacrylonitrile, polyamide and in particular polyesters.
- Paper is generally a flat material which consists of 60 to 95% of mechanically or chemically digested fibers mostly of vegetable origin which are bonded together in an aqueous suspension and are consolidated with the addition of auxiliaries by dewatering on a sieve to give the sheet form. Paper consists of fibers, auxiliaries and water. Besides vegetable fibers from chemical pulp, mechanical pulp and rags (e.g. cotton, hemp fibers), animal, mineral or synthetic fibers are used. In addition, recycled paper as a secondary fiber represents the most important fiber source in terms of amount for paper-making.
- the carrier according to the invention is a paper in the form of wipes, such as a paper handkerchief, cosmetic wipe, washing cloth, paper hand towel, paper cleaning cloth or kitchen wipe.
- the solid dry carrier is attached to an applicator.
- This applicator can, for example, be made of plastic, glass, wood, metal or textile.
- One carrier may be attached to the applicator, or else a plurality of identical carriers, e.g. two or three foams.
- combinations of the carriers can also be attached to the applicator.
- the table below gives carriers T1 to T68 which are composed of a combination of material characterized in each case by an “x”.
- the particular carrier is loaded with hydrophobin.
- This may be one hydrophobin or else a mixture of different hydrophobins, e.g. a mixture of two or three different hydrophobins.
- the carrier is loaded with a mixture comprising hydrophobin.
- the carrier can be loaded in any way with hydrophobin.
- the person skilled in the art knows of various methods for the loading.
- immersion method in which the carrier is immersed into an immersion bath or is drawn through a bath.
- a second variant constitutes the “spray method”, in which the mixture is sprayed onto the carrier.
- the carrier runs, for example, as nonwoven, paper, textile or composite webs, past stripping plates, beams or nozzles which are continuously loaded with the hydrophobin-comprising mixtures.
- a mixture which comprises hydrophobin and at least water or an aqueous solvent mixture is used for loading the carrier.
- Suitable aqueous solvent mixtures comprise water and one or more water-miscible solvents.
- the selection of such components is only limited inasmuch as the hydrophobins and the other components have to be soluble in the mixture to an adequate degree.
- such mixtures comprise at least 50% by weight, preferably at least 65% by weight and particularly preferably at least 80% by weight, of water. Very particularly preferably, only water is used.
- the person skilled in the art makes a suitable selection from the water-miscible solvents depending on the desired properties of the mixture.
- Suitable, water-miscible solvents comprise monoalcohols, such as methanol, ethanol or propanol, higher alcohols, such as ethylene glycol or polyether polyols and ether alcohols such as butyl glycol or methoxypropanol.
- the mixture used for the treatment has a pH of 4 or above, preferably of 6 or above and particularly preferably of 7 or above.
- the pH is in the range from 4 to 11, preferably from 6 to 10, particularly preferably from 7 to 9.5 and very particularly preferably from 7.5 to 9.
- the pH can be from 7.5 to 8.5 or from 8.5 to 9.
- the mixture preferably comprises a suitable buffer.
- a suitable buffer depending on the pH range envisaged for the loading.
- potassium dihydrogenphosphate buffer, tris(hydroxy-methyl)aminomethane buffer (tris buffer), borax buffer, sodium hydrogencarbonate buffer and sodium hydrogenphosphate buffer are to be mentioned. Preference is given to tris buffer.
- the concentration of the buffer in the solution is determined by the person skilled in the art depending on the desired properties of the mixture. The person skilled in the art will generally ensure an adequate buffer capacity to achieve the most uniform loading of the carrier possible. A concentration of from 0.001 mol/l to 1 mol/l, preferably from 0.005 mol/l to 0.1 mol/l and particularly preferably from 0.01 mol/l to 0.05 mol/l has proven useful.
- the concentration of the hydrophobins in the mixture is selected by the person skilled in the art depending on the desired properties of the loading. At higher concentrations, more rapid loading can generally be achieved. As a rule, a concentration of from 0.1 ⁇ g/ml to 1000 ⁇ g/ml, preferably from 1 ⁇ g/ml to 500 ⁇ g/ml, particularly preferably from 10 ⁇ g/ml to 250 ⁇ g/ml, very particularly preferably from 30 ⁇ g/ml to 200 ⁇ g/m′ and for example from 50 to 100 ⁇ g/ml, has proven useful.
- the mixture used can optionally comprise further components.
- additional components comprise surfactants.
- Suitable surfactants are, for example, nonionic surfactants which comprise polyalkoxy groups, in particular polyethylene oxide groups. Examples comprise polyoxyethylene stearates, alkoxylated phenols and the like.
- Suitable surfactants comprise polyethylene glycol(20) sorbitan monolaurate (Tween® 20), polyethylene glycol(20) sorbitan monopalmitate (Tween® 40), polyethylene glycol(20) sorbitan monostearate (Tween® 60), polyethylene glycol(20) sorbitan monooleate (Tween® 80), cyclohexyl methyl- ⁇ D-maltoside, cyclohexyl ethyl- ⁇ D-maltoside, cyclohexyl-n-hexyl- ⁇ D-maltoside, n-undecyl- ⁇ D-maltoside, n-octyl- ⁇ D-maltopyranoside, n-octyl- ⁇ D-glucopyranoside, n-octyl- ⁇ D-glucopyranoside, n-dodecanoylsucrose.
- surfactants are disclosed for example in WO 2005/68087 page 9, line 10 to page 10, line 2.
- the concentration of surfactants is generally from 0.001 to 0.5% by weight, preferably from 0.01 to 0.25% by weight and particularly preferably from 0.1 to 0.2% by weight, in each case based on the amount of all components in the preparation.
- metal ions in particular divalent metal ions can also be added to the mixture.
- Metal ions can contribute to a more uniform loading.
- Suitable divalent metal ions comprise, for example, alkaline earth metal ions such as Ca 2+ ions.
- Such metal ions can preferably be added as salts soluble in the formulation, for example, in the form of chlorides, nitrates or carbonate, acetate, citrate, gluconate, hydroxide, lactate, sulfate, succinate, tartrate.
- calcium chloride or magnesium chloride can be added.
- the solubility can optionally also be increased through suitable auxiliaries, for example, complexing agents. If present, the concentration on such metal ions is generally from 0.01 to 10 mmol/l, preferably from 0.1 to 5 mmol/l and particularly preferably from 0.5 to 2 mmol/l.
- the carriers are loaded, in addition to the mixture comprising hydrophobin, with cosmetics such as gel, foam, spray, an ointment, cream, emulsion, suspension, lotion, milk or paste.
- cosmetics such as gel, foam, spray, an ointment, cream, emulsion, suspension, lotion, milk or paste.
- the cosmetics can comprise the following constituents:
- the preparations can be obtained by mixing the above-described hydrophobin-comprising mixtures with the desired additional aforementioned components and diluting to the desired concentration.
- the preparations can of course also be obtained by correspondingly dissolving isolated, solid hydrophobins.
- the carrier is in any case treated with a hydrophobin-comprising mixture or a hydrophobin-comprising preparation.
- the carrier In order to ensure uniform loading of the carrier, the carrier should be saturated as completely as possible with the mixture or preparation.
- the loading can in particular be undertaken by immersing the carrier into the mixture or preparation, spraying with the mixture or preparation or perfusing with the mixture or preparation.
- a certain contact time is required in order to load the carriers.
- the person skilled in the art chooses a suitable contact time depending on the desired result. Examples of typical contact times are in a period from 0.1 to 12 h, without any intention to limit the invention thereto. It can be influenced, for example, by applying pressure or vacuum.
- the contact time is dependent on the temperature and on the concentration of the hydrophobin in the mixture or preparation.
- the temperature in the course of the loading process can be room temperature or else may be elevated temperatures.
- the temperatures may be 5, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, or 120° C.
- the temperature can, for example, be introduced by heating the bath in which the carrier to be loaded is immersed. It is also possible, however, to subsequently heat an immersed carrier, for example, with the help of IR rays.
- the loading with hydrophobin takes place in the presence of microwave irradiation.
- the contact time can be very considerably reduced.
- just a few seconds suffice in certain circumstances to load the carrier with hydrophobin.
- the solvent is removed from the carrier.
- the solvent can be removed mechanically from the carrier by exerting pressure.
- the carrier can be washed beforehand also with water or a preferably aqueous solvent mixture. Removal of the solvent can take place, for example, by simple evaporation in air. Removal of the solvent can, however, also be made easier by increasing the temperature and/or with suitable gas streams and/or applying a vacuum. The evaporation can be made easier by, for example, heating loaded carriers in a drying cabinet or blowing a heated gas stream onto them. The methods can also be combined, for example by drying in a convection drying oven or a drying tunnel.
- the loaded carrier can also be heated by means of radiation, in particular IR radiation, to remove the solvent.
- IR radiation for example, all types of broadband IR emitters, for example NIR, MIR or NIR emitters, can be used. However, it is also possible, for example, to use IR lasers. Such radiation sources are commercially available in diverse radiation geometries.
- the temperature and the drying time in the course of drying are set by the person skilled in the art.
- a drying temperature of from 30 to 130° C., preferably from 50 to 120° C., particularly preferably from 70 to 110° C., very particularly preferably from 75 to 105° C. and for example from 85 to 100° C.
- the temperature of the carrier itself may of course also be higher.
- the higher the drying temperature the shorter the drying time.
- the drying temperatures may be lower and the drying time shorter if the drying is carried out at subatmospheric pressure.
- the drying time is also governed by the desired residual moisture content of the carrier and can influence this in a decisive manner.
- the temperature treatment in the course of loading the carrier and the drying can advantageously be combined with one another.
- a carrier firstly can be treated with the mixture or preparation at room temperature and then be dried and heat-treated at elevated temperatures.
- elevated temperature is applied at least in one of the two steps “loading” or “drying”.
- a temperature higher than room temperature is applied in both steps.
- the loading can be carried out directly after the production process of the carrier, for example by the manufacturer of the carrier himself. However, it can of course also not be carried out until a later time, for example by a further processor or following delivery of the carrier to the end user by him himself.
- the loaded carriers can be obtained by carrying out the production of the carrier in the presence of hydrophobin.
- the hydrophobin and optionally further of the aforementioned constituents can be mixed with the aforementioned aqueous solution or dispersion of the melamine-formaldehyde precondensate, a propellant, a dispersant and a hardener.
- the mixture can then be heated, foamed and cured in a manner known in principle.
- the solid dry carriers according to the invention are preferably used in a method for removing water-insoluble substances.
- the solubility in water of the substances which are removed according to the invention from substrate surfaces can range from essentially water-insoluble to completely water-insoluble. In general, the solubility of these substances in water is about 1 g/l at room temperature. Moreover, the solubility in water at room temperature can, however, be lower than 1 g/l.
- the water-insoluble substances are fats, oils, waxes and/or compositions comprising fats, waxes and/or oils. Apart from oils, fats and/or waxes, compositions can also comprise further substances.
- compositions can also comprise a combination of oils, fats and waxes:
- oils are water-insoluble, liquid organic compounds with a relatively low vapor pressure.
- the oils include fatty oils, essential oils, mineral oils and silicone oils.
- Essential oils are oily, water-vapor-volatile extracts from plants or parts of plants, which have a strong characteristic odor depending on the original plant. They consist for the most part of terpenes (example: lemon oil). Essential oils can, however, also be produced synthetically.
- Mineral oils are obtained from crude oils or coals and are hydrocarbon compounds. From a chemical point of view, most of the compounds in the substance mixtures are types of alkanes.
- Silicone oils are based on polymers and copolymers of silicon-oxygen units and organic side chains. They are relatively insensitive toward oxidation, heat and other influences.
- fats are esters of the trihydric alcohol glycerol (propane-1,2,3-triol) with three, mostly different, predominantly even-numbered and unbranched aliphatic monocarboxylic acids, the so-called fatty acids.
- waxes are substances which are nowadays defined by their mechanicophysical properties. Their chemical composition and origin, by contrast, vary greatly.
- a substance is referred to as a wax if it is kneadable at 20° C., is solid to brittly hard, has a coarse to finely crystalline structure, is translucent to opaque in terms of color, but is not glass-like, melts above 40° C. without decomposition, is readily liquid (a little viscous) a little above the melting point, has a highly temperature-dependent consistency and solubility and it can be polished using light pressure.
- Animal and vegetable waxes include the lipids.
- Main components of these substance mixtures are esters of fatty acids with long-chain, aliphatic, primary alcohols.
- Myricin is, for example, an ester of palmitic acid with myristyl alcohol and the main constituent of beeswax. These esters differ in their structure from the fats, which are triglycerides of fatty acids.
- Animal waxes are, for example, spermaceti and beeswax.
- Vegetable waxes are, for example, sugar cane wax, carnauba wax of the wax palm.
- Jojoba oil is not a triglyceride and thus actually not an oil, but in chemical terms is a liquid wax.
- Geological earth waxes consist essentially of hydrocarbons.
- Synthetic waxes are primarily obtained from crude oil.
- the main product is hard paraffin, which is used, for example, for candles or shoe cream.
- natural waxes are chemically modified or completely synthesized (polyethylenes, copolymers). Soya wax can also be produced from soya by hydrogenation.
- the water-insoluble substances are sebum and/or makeup.
- makeup is to be understood as meaning decorative cosmetics or makeup.
- Decorative cosmetics are substances which are applied for single use on (facial) skin, lips, hair or nails, for the exclusive or predominant purpose of changing their appearance within a short time to a significant degree, mostly in terms of color, but reversibly.
- sebum is a skin surface fat which, to a lesser extent, consists of the horny fat, a by-product of keratinization, and originates from the sebaceous glands.
- the average composition of sebum consists of: triglycerides (19.5-49.4% mass content), wax esters (22.6-29.5% mass content), fatty acids (7.9-39.0% mass content), squalene (10.1-13.9% mass content), diglycerides (1.3-4.3% mass content), cholesterol esters (1.5-2.6% mass content), cholesterol (1.2-2.3% mass content).
- a carrier comprising hydrophobin is used in a cosmetic method for removing sebum from skin.
- a carrier comprising hydrophobin is used in a cosmetic method for removing sebum from hair.
- a carrier comprising hydrophobin is used in a cosmetic method for removing makeup from skin.
- a carrier comprising hydrophobin is used in a cosmetic method for removing makeup from hair.
- a carrier comprising hydrophobin is used in a cosmetic method for removing makeup and sebum from skin.
- a carrier comprising hydrophobin is used in a cosmetic method for removing makeup and sebum from hair.
- water-insoluble substances are removed from substrate surfaces.
- the substrates used may be solids.
- the solids may be amorphous, crystalline or partially crystalline.
- a substrate can be composed of one or more solids. It is possible that a substrate comprises gas and/or liquid inclusions.
- the substrates consist of water or glass, plastic, wood, metal, textile, feathers, fur, skin and/or hair.
- Water can include, for example, seas, oceans, rivers, streams, puddles and swimming pools.
- Glass can comprise technical glasses, optical glasses and decorative glasses. Examples of these are sheet glasses such as windowpanes and mirrors.
- a plastic In general, a plastic is a solid body whose base constituent is synthetically or semisynthetically produced polymers with organic groups. Plastics are used in very many fields, such as, for example, in automobile construction, building industry, household and gardens.
- wood comprises lignified plant tissue.
- wood is also understood as meaning coated wood, as is used, for example, in the manufacture of furniture, parquet and similar floor coverings and toys.
- metals is understood as meaning all chemical elements apart from hydrogen, carbon, phosphorus, selenium, iodine, helium, neon, argon, krypton, xenon, radon and ununoctium.
- metal also covers stainless steel, for example, of domestic appliances or cutlery.
- Stainless steel (according to DIN EN 10020) is a name for alloyed or unalloyed steels with a particular degree of purity, for example, steels whose sulfur and phosphorus content (so-called iron companions) does not exceed 0.025%.
- the term also covers metal alloys.
- the term fur relates to animal fur.
- the term feathers relates to animal feathers.
- the term skin relates to human facial skin.
- the substrate surface is primarily the outer layer of the substrate to be treated.
- the substrate surface can be smooth, level, not entirely smooth but irregular, for example each surface can have depressions.
- the substrate surface can also have cavities, cells and/or pores.
- the method according to the invention is characterized by the simple and easy handling of the carriers comprising hydrophobin.
- the solid dry carrier loaded with hydrophobin removes the water-insoluble substances through simple contacting of the substrate surface, e.g. in the form of wiping or dabbing with gentle pressure.
- the method according to the invention ensures that water-insoluble substances are removed gently using a carrier.
- the present invention can be used in many other fields such as, for example, in the home, environment, transportation and industry.
- the method according to the invention can be used for cleaning industrial plants or sections of plants. This is primarily of great interest in water-free zones or areas which can be thoroughly cleaned using the solid dry carrier according to the invention.
- the present invention can also be used, for example, for removing oil contaminations on the land and/or in water.
- One advantage over conventional methods is that with the methods according to the invention, more oil is absorbed by the carriers loaded with hydrophobin and said oil is released again only in very small amounts. Consequently, firstly only very little oil-contaminated material which has to be disposed of is produced, and secondly the reduced release of the oil prevents further contamination of the environment and of people.
- the cleaning of automobiles or parts of automobiles, such as wheel rims can be undertaken using the present invention.
- the soilings e.g. on the wheel rim are readily absorbed by the carrier according to the invention, and since said carrier releases the soilings again only in very small amounts, the person doing the cleaning does not come into contact with the removed soilings.
- the dry wipes according to the invention with a very low residual moisture are also highly suited for removing soilings (e.g. fingerprints) from smooth surfaces, e.g. plastic surfaces, mirrors or panes of glass.
- the method according to the invention has the advantage that it is not necessary to clean the entire surface, but instead cleaning can take place partially.
- the advantage of the present invention is available in a method for removing water-insoluble substances from substrate surfaces that can be used widely. Moreover, the method is gentle to the substrate surface. Additionally, the method is simple and permits the removal of the water-insoluble substances with little handling.
- Cube-shaped samples (2.5 cm ⁇ 2.5 cm ⁇ 2.5 cm) of an open-cell melamine-formaldehyde foam with a density of 9 kg/m 3 (Basotect®, BASF Aktiengesellschaft) were saturated with a solution of 0.1 g/l of hydrophobin A (SEQ ID 20 from WO 2007/14897) or hydrophobin B (SEQ ID 26 from WO 2007/14897).
- the solution with the saturated foam cube was heated at 60° C. for 15 h.
- the aqueous solution was then decanted off.
- the foam cubes were freed from the majority of the absorbed liquid by squeezing, washed several times with ultra pure water and squeezed and dried to constant weight at 40° C.
- the loaded foam cubes exhibited improved removal of natural sebum, measured on untreated human skin.
- the absorbed amount of sebum/triglyceride was ascertained by means of an analytical balance.
- the sebum/triglyceride absorption was calculated relative to the weight of the foam cube.
- the foam cubes were then placed on filter paper (Porringer type 1243/90) for 30 min. The weight was ascertained again using the analytical balance and the sebum transfer was calculated.
- Sebum Sebum No. Carrier foam cube absorption in % transfer in % C3 loaded with hydrophobin B 74.5 3 K2 untreated 60.5 4 K3 loaded with casein 39.8 5
- the carrier according to the invention (C3) was able to absorb the largest amount of synthetic sebum and then transferred the least amount of synthetic sebum.
- a carrier loaded with an arbitrarily chosen comparison protein (casein) exhibited a clearly reduced sebum absorption, and also a higher subsequent sebum transfer.
- Loading buffer the loading buffer was a 50 mM tris buffer. 1 mM CaCl 2 was added and the pH was adjusted to 8 with 32% HCl.
- the buffer was poured into a beaker and the predissolved hydrophobin B was added until the end concentration was 50 ⁇ g/ml and stirred.
- the cotton wool pads were placed into the beaker. They were completely immersed into the solution.
- the beaker was covered and then incubated for 16 h in a heating cabinet at 50° C.
- the cotton wool pads were dried in a heating cabinet at 50° C. for 24 h.
- the success of the loading could then be checked by placing a drop of water (about 50 ⁇ l) on the cotton wool pad. If the drop remained on the surface of the pad treated with hydrophobin for longer compared to an untreated pad (about 5 seconds) instead of soaking in, the loaded cotton wool pad was used further.
- the cotton wool pads were weighed down with a weight and then placed into a vessel containing water.
- the untreated cotton wool pad transferred the sebum/triglyceride rapidly again.
- the cotton wool pad swelled considerably.
- the cotton wool pad treated with hydrophobin B held the sebum/triglyceride considerably better and also remained dimensionally stable.
- the foam cubes were freed from the majority of the absorbed liquid by squeezing, washed several times with ultra pure water and squeezed and dried to constant weight at 40° C.
- FIGS. 1 to 5 are identical to FIGS. 1 to 5 :
- FIG. 1 Treated Basotect cubes
- FIG. 2 Treated Basotect cubes following immersion in cyclomethicone/Sudan Red
- FIG. 3 Coated Basotect cubes with absorbed cyclomethicone oil in water.
- FIG. 4 Even after an extended waiting time (30 min) it can be seen that the hydrophobin-coated sponge does not release any oil, in contrast to the SDS-coated sponge.
- FIG. 5 Sliced Basotect cubes after the water bath.
- the intense red coloration indicates that the cyclomethicone oil has remained in the hydrophobin coated sponge.
- SDS seemingly leads to no coating and the oil simply escapes from the sponge again.
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Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07117555.8 | 2007-09-28 | ||
EP07117555A EP2042155A1 (de) | 2007-09-28 | 2007-09-28 | Verfahren zum Entfernen von wasserunlöslichen Substanzen von Substratoberflächen |
EP07120415.0 | 2007-11-09 | ||
EP07120415A EP2042156A1 (de) | 2007-09-28 | 2007-11-09 | Verfahren zum Entfernen von wasserunlöslichen Substanzen von Substratoberflächen |
PCT/EP2008/062677 WO2009050000A1 (de) | 2007-09-28 | 2008-09-23 | Verfahren zum entfernen von wasserunlöslichen substanzen von substratoberflächen |
Publications (1)
Publication Number | Publication Date |
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US20100311629A1 true US20100311629A1 (en) | 2010-12-09 |
Family
ID=39031213
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US12/680,280 Abandoned US20100311629A1 (en) | 2007-09-28 | 2008-09-23 | Method for removing water-insoluble substances from substrate surfaces |
Country Status (9)
Country | Link |
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US (1) | US20100311629A1 (ja) |
EP (3) | EP2042155A1 (ja) |
JP (1) | JP2010540486A (ja) |
KR (1) | KR20100063132A (ja) |
CN (1) | CN101868224A (ja) |
BR (1) | BRPI0817282A2 (ja) |
CA (1) | CA2699575A1 (ja) |
RU (1) | RU2010116552A (ja) |
WO (1) | WO2009050000A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100267096A1 (en) * | 2009-03-09 | 2010-10-21 | Basf Se | Use of a synergistic mixture of water-soluble polymers and hydrophobins for thickening aqueous phases |
WO2016193547A1 (en) * | 2015-06-02 | 2016-12-08 | Teknologian Tutkimuskeskus Vtt Oy | A method for increasing foam stability |
Families Citing this family (7)
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CN102933259A (zh) * | 2010-06-17 | 2013-02-13 | 荷兰联合利华有限公司 | 口腔护理组合物 |
KR101189234B1 (ko) | 2010-06-30 | 2012-10-09 | 기아자동차주식회사 | 차량용 압축기 제어 장치 및 제어 방법 |
WO2012004255A1 (de) * | 2010-07-07 | 2012-01-12 | Basf Se | Zusammensetzung enthaltend ein hydrophobin und verfahren zum reinigen von hydrophoben oberflächen |
AR085845A1 (es) | 2011-04-08 | 2013-10-30 | Danisco Us Inc | Composiciones |
US10226744B2 (en) | 2012-10-19 | 2019-03-12 | Danisco Us Inc | Stabilization of biomimetic membranes |
EP3083936B1 (en) | 2013-12-19 | 2018-07-04 | Danisco US Inc. | Use of hydrophobins to increase gas transfer in aerobic fermentation processes |
JP2020081223A (ja) * | 2018-11-21 | 2020-06-04 | 森田生醫股▲フン▼有限公司Dr. Jou Biotech Co., Ltd. | バイオセルロースドライフェイスマスク及びその乾燥方法 |
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US20100267096A1 (en) * | 2009-03-09 | 2010-10-21 | Basf Se | Use of a synergistic mixture of water-soluble polymers and hydrophobins for thickening aqueous phases |
WO2016193547A1 (en) * | 2015-06-02 | 2016-12-08 | Teknologian Tutkimuskeskus Vtt Oy | A method for increasing foam stability |
Also Published As
Publication number | Publication date |
---|---|
WO2009050000A1 (de) | 2009-04-23 |
EP2205206A1 (de) | 2010-07-14 |
EP2042156A1 (de) | 2009-04-01 |
EP2042155A1 (de) | 2009-04-01 |
KR20100063132A (ko) | 2010-06-10 |
CA2699575A1 (en) | 2009-04-23 |
JP2010540486A (ja) | 2010-12-24 |
RU2010116552A (ru) | 2011-11-27 |
BRPI0817282A2 (pt) | 2014-10-07 |
CN101868224A (zh) | 2010-10-20 |
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